Medical emergency?Emergency? Call 911. Nearest emergency roomsNearest ERs

Internal Medicine

Rijuna Menon, MD

Works at hospitals in Santa Clara, CA · California

Summary

Rijuna Menon, MD (Internal Medicine) is listed by Medicare at 1 hospital in Santa Clara, CA. NPI 1245378447. Medicare data says the clinician accepts Medicare assignment. Source: CMS Facility Affiliation Data, updated 2026-10-02.

From official Medicare data

This page shows what Medicare's official clinician data says about Rijuna Menon, joined by NPI number (data updated 2026-10-02). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

At a glance

Internal MedicinePrimary specialty
YesAccepts Medicare assignment
24Years since medical school (graduated 2002)
FemaleGender (as listed)
Permanente Medical Group IncGroup practice

Quick answers

Which hospitals does Rijuna Menon work at?
Medicare's official clinician data lists Rijuna Menon at 1 hospital: Kaiser Foundation Hospital-Santa Clara. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Rijuna Menon see patients?
Medicare's clinician data lists 3 practice locations, including Sunnyvale, CA and Santa Clara, CA. Call before your visit to confirm the address.
What is Rijuna Menon's specialty?
Medicare lists Internal Medicine as the primary specialty, and also Nephrology.
Does Rijuna Menon accept Medicare assignment?
Yes. Medicare's clinician data says Rijuna Menon accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
What is the phone number for Rijuna Menon?
(408) 617-1887, as listed in official Medicare / NPI Registry data.
What is Rijuna Menon's NPI number?
1245378447. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Rijuna Menon works

Medicare's Facility Affiliation Data lists Rijuna Menon at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.

Practice locations

Addresses where Rijuna Menon is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Rijuna Menon as a member of this group (CMS data updated 2026-10-02).

  • Permanente Medical Group Inc10,996 clinicians in the group

Specialties

Find other Internal Medicine doctors in California →

Other internal medicine doctors in Sunnyvale

Clinicians with the same Medicare primary specialty in Sunnyvale, CA — not a recommendation.

All internal medicine doctors in Sunnyvale →

Clinician information

CredentialMD
Graduation year2002
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1245378447
CorrectionsReport an error or suggest an update →

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

  1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
  2. National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
  3. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  4. Medicare Care Compare — official Medicare tool to look up clinicians